April weather forecastRiverview, DE
April
Weather in April
April in Riverview, Delaware, is a refreshing spring month, with temperature in the range of an average high of 61.5°F (16.4°C) and an average low of 47.1°F (8.4°C).Temperature
As April sets, the average high-temperature shows an increase, moving up from a fresh 50.5°F (10.3°C) in March to a refreshing 61.5°F (16.4°C). Riverview's average low-temperature during April nights is observed to be a frosty 47.1°F (8.4°C).Humidity
The months with the lowest humidity are January, March, April and November, with an average relative humidity of 74%.Rainfall
In Riverview, Delaware, in April, it is raining for 15.1 days, with typically 2.48" (63mm) of accumulated precipitation. In Riverview, during the entire year, the rain falls for 167.5 days and collects up to 35.35" (898mm) of precipitation.Snowfall
Months with snowfall in Riverview are January through April, November and December. April is the last month it regularly snows. During 0.1 snowfall days, in April, Riverview aggregates 0.12" (3mm) of snow. In Riverview, during the entire year, snow falls for 12.5 days and aggregates up to 5.94" (151mm) of snow.Daylight
The average length of the day in April is 13h and 15min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:26 pm. On the last day of April, in Riverview, sunrise is at 6:04 am and sunset at 7:54 pm EDT.
Sunshine
The average sunshine in April is 8.6h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In April, the maximum UV index of 4 transforms into these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Around midday, solar radiation is most harmful; hence, exposure should be limited. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Riverview, DE
- Average high temperature in April: 61.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in April: 47.1°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in April
Riverview, DE
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Riverview, DE
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in April
Riverview, DE
- Average humidity in April: 74%
The months with the highest relative humidity are May, August and September (79%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in April
Riverview, DE
- Average rainfall in April: 2.48"
The wettest month (with the highest rainfall) is August (3.9").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in April
Riverview, DE
- Average rainfall days in April: 15.1 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall in April
Riverview, DE
- Average snowfall in April: 0.12"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Riverview, DE
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Riverview, DE
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in April
Riverview, DE
- Average sunshine days in April: 13.1 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (9.7 days).
Average UV index in April
Riverview, DE
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in April
Riverview, DE
- Average cloud cover in April: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in April
Riverview, DE
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
